Self-directed growth of iron core–shell oval-shaped nanorods and nanocubes on aH-terminated Si(100) substrate in an external magnetic field

Abstract

Iron core–shell oval-shaped nanorods and nanocubes were electrodeposited on aH-terminated Si(100) substrate with and without the presence of an externally appliedmagnetic field (with a flux density of 1.3 T). The presence of an external magnetic fieldduring electrodeposition was found to produce clustering of oval-shaped nanorods withshort-range ordering in the long-axis orientation, and to induce self-assembly of nanocubesinto stripes along the field-line direction. Glancing-incidence x-ray diffraction showed thatthe magnetic field also changed the distribution of the crystal orientations of the Fenanocubes. An external magnetic field applied during electrodeposition could therefore beused to manipulate the spatial and crystallographic arrangements of the deposited Fenanoparticles.